Квадратные уравнения и его корни.. Created by aleksey47. matematika-ru

Квадратные уравнения и его корни...

aleksey47 @aleksey47

August 2022 1 5 Report

Квадратные уравнения и его корни.

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dtnth

Verified answer

$y^2=4y+96$
$y^2-4y-96=0$
$a=1; b=-4;c=-96$
$D=b^2-4ac$
$D=(-4)^2-4*1*(-96)=16+384=400=20^2$
$y_1=\frac{-b-\sqrt{D}}{2a};y_2=\frac{-b+\sqrt{D}}{2a}$
$y_1=\frac{4-20}{2*1}=-8$
$y_2=\frac{4+20}{2*1}=12$
ответ: -8; 12

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Answers & Comments

Verified answer

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v ravnobedrennoj trapecii osnovaniya 51sm i 69 sm bokovaya storona41smnajdite92ae2c7d29b2ce9421835dbda3433e08 94084

v ravnobedrennoj trapecii vysota provedennaya iz vershiny tupogo ugla delit bolshef330882292a0c508c4d4bdfc73acf728 79112

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